A base on balls (BB) is credited to a batter and against a pitcher in baseball statistics when a batter receives four pitches that the umpire calls "balls". It is better known as a walk. The base on balls is defined in Section 2.00 of baseball's Official Rules, [ [http://mlb.mlb.com/mlb/official_info/official_rules/definition_terms_2.jsp rule 2.00 ] ] and further detail is given in 6.08(a). [ [http://mlb.mlb.com/mlb/official_info/official_rules/batter_6.jsp rule 6.00 ] ] It is called a "walk" because the batter is then entitled to walk to first base, or more specifically (as defined in the rules of baseball) he is "entitled to first base without liability to be put out." However, the term "base on balls" is used in official context because it is considered a faux pas for a professional player to walk to first base, and also to distinguish from the other manners in which a batter can be awarded first base without liability to be put out (e.g., hit by pitch, catcher's interference).

A batter who draws a base on balls is commonly said to have been "walked" by the pitcher. When the batter is walked, runners advance one base without liability to be put out only if forced to vacate their base to allow the batter to take first base. If a batter draws a walk with the bases loaded, all preceding runners are forced to advance, including the runner on third base who is forced to home plate to score a run, and the batter is credited with an RBI per rule 10.04. [ [http://mlb.mlb.com/mlb/official_info/official_rules/official_scorer_10.jsp rule 10.00 ] ]

Receiving a base on balls does not count as a hit or an at bat for a batter but does count as a time on base and a plate appearance. Therefore, a base on balls does not increase nor decrease a player's batting average, but it does increase his on-base percentage. [In 1887, Major League Baseball counted bases on balls as hits. The result was skyrocketed batting averages, including some near .500, and the experiment was abandoned the following season. Current record books do not count walks in 1887 as hits.]

A hit by pitch is not counted statistically as a walk, though the effect is the same, with the batter receiving a free pass to first base.

Intentional base on balls

A subset of the base on balls, an intentional base on balls (IBB) or intentional walk is when the pitcher deliberately pitches the ball away from the batter in order to issue a base on balls. As with any other walk, an intentional walk entitles the batter to first base without liability to be put out, and entitles any runners to advance if forced. Intentional walks are a strategic defensive maneuver, usually done to bypass one hitter for one the defensive team believes is less likely to initiate a run-scoring play (e.g., a home run, sacrifice fly, or RBIbase hit), or to set up a double play or force out situation for the next batter. They do carry an inherent risk, however, as they give the offensive team another runner on base, without any effort on their part, who could potentially score a run.

An intentional walk is signaled by the catcher standing and extending one arm to the side away from the batter. The pitcher then pitches the ball to that side several feet outside from home plate, usually outside the reach of the batter. A ball pitched in this manner is called an intentional ball and counts as a ball in the pitcher's pitch count. In order to count as an intentional ball, the ball must be legally pitched, i.e., the pitcher's foot must be on the pitcher's rubber, the catcher must be in the catcher's box, and the batter must be in the batter's box appearing ready to take a pitch at the time the ball is thrown. An intentional walk may be signaled at any time during the batter's turn at the plate; in these cases only enough additional intentional balls need to be thrown to bring the total to four. Only walks issued by the catcher signaling as described above are recorded as intentional walks (see below); walks issued without the catcher signaling – even if the pitches "are" intentionally thrown outside of the strike zone – are not recorded as intentional.

Another risk taken by the defensive team in issuing a base on balls is that since intentional balls must be pitched in a legal manner, they can legally become wild pitches or passed balls. Likewise, a baserunner can attempt to steal a base, or the batter can choose to swing at an intentional ball; however, these rarely occur since taking these risks is rarely more beneficial to the offensive team than allowing the walk to occur. In the Major Leagues, the most recent example of a swing at an intentional ball resulting in a hit occurred during a June 22, 2006 game between the Florida Marlins and the Baltimore Orioles. In the top of the 10th inning, with a runner on second base, Baltimore pitcher Todd Williams was signaled to intentionally walk the Marlins' Miguel Cabrera. Noticing that the intentional ball came in too close to the plate, Cabrera swung at the ball, resulting in a base hit and a run scored for Florida. [cite newsauthor = title = Marlins' Cabrera spoils intentional walk in winurl = http://www.msnbc.msn.com/id/13493228/publisher = espn.comdate = 2006-06-22accessdate = 2007-06-02]

Though intentional walks are recorded as such in the records of the official scorer, they are combined with standard, non-intentional walks when calculating a player's on-base percentage, and are almost never given a separate column with a player's statistics.

A common nickname for the intentional walk is four-finger salute, since most managers call for an intentional walk by holding up four fingers. Outside the professional leagues, such as in high school or college baseball, the manager may simply request to the plate umpire to let the batter go to first instead of having the pitcher waste four outside pitches.

Barry Bonds is the all time record holder with 688 intentional bases on balls (as of the start of the 2008 season). The next most is Hank Aaron with 293.

Major League Baseball leaders

Career

"Top 100 MLB leaders in base on balls (walks)" through September 30, 2008

Active

ingle-season

ee also related lists

*Baseball statistics*Top 100 MLB leaders in base on balls (walks)*List of Major League Baseball players with 2000 hits*List of Major League Baseball players with 4,000 Total bases*List of Major League Baseball players with 400 doubles*List of Major League Baseball players with 100 triples*List of top 500 Major League Baseball home run hitters*List of Major League Baseball players with 1000 runs*List of Major League Baseball players with 1000 RBI*Top 15, and List of active MLB players in the Top 50 in strikeouts*List of Major League Baseball players with a .400 on-base percentage*List of Major League Baseball players with a .500 slugging percentage*List of Major League Baseball players with a .900 on-base plus slugging*List of Major League Baseball leaders in games started*List of Major League Baseball leaders in games finished*List of Major League Baseball leaders in career wins*300 win club*Top 100 Major League Baseball strikeout pitchers*3000 strikeout club*List of 300-save club and Blown saves*List of_Major League Baseball all-time saves leaders

base on balls — noun (baseball) an advance to first base by a batter who receives four balls (Freq. 3) he worked the pitcher for a base on balls • Syn: ↑walk, ↑pass • Derivationally related forms: ↑walk ( … Useful english dictionary

base on balls — {n.} First base given to a baseball batter who is pitched four balls outside of the strike zone. * /He was a good judge of pitchers and often received bases on balls./ … Dictionary of American idioms

base on balls — {n.} First base given to a baseball batter who is pitched four balls outside of the strike zone. * /He was a good judge of pitchers and often received bases on balls./ … Dictionary of American idioms

base on balls — pl. bases on balls. Baseball. the awarding of first base to a batter to whom four balls have been pitched. Also called walk, pass. [1890 95] * * * … Universalium

base\ on\ balls — noun First base given to a baseball batter who is pitched four balls outside of the strike zone. He was a good judge of pitchers and often received bases on balls … Словарь американских идиом

base on balls — Date: 1884 an advance to first base awarded a baseball player who during a turn at bat takes four pitches that are balls … New Collegiate Dictionary

base on balls — noun An instance where the batter is allowed to go directly to first base without the possibility of being put out, due to the opposing pitcher delivering four balls. Syn: walk … Wiktionary